Media inquiries

Jump Trading LLC, was all but invisible until it was among six companies subpoenaed in April by New York prosecutors. Jump has ascended the ranks of high-frequency traders during the past 15 years to become one of the top firms on the Chicago Mercantile Exchange.

Letter from CME Group to customers regarding government shutdown and futures contracts. It's possible that a prolonged shutdown of the federal government could have an impact on the settlement procedures of certain dairy and livestock products at CME Group.

Sequestration's possible mandatory spending cuts — should they begin on March 1 — could have an impact on the physical delivery and cash settlement mechanisms of certain CME livestock and dairy products.